[    2.311538] netdevsim netdevsim2428 eni2428np1: renamed from eth0
[    2.801970] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.802064] #PF: supervisor write access in kernel mode
[    2.802115] #PF: error_code(0x0002) - not-present page
[    2.802182] PGD 0 P4D 0 
[    2.802215] Oops: Oops: 0002 [#1] SMP
[    2.802258] CPU: 2 UID: 0 PID: 236 Comm: python3 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.802360] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.802427] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.802501] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.802690] RSP: 0018:ffff97fc805c7ae8 EFLAGS: 00010046
[    2.802742] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000100007
[    2.802811] RDX: ffff97fc805c7b20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.802879] RBP: ffff97fc805c7b20 R08: 0000000000000000 R09: ffffffffa713c800
[    2.802947] R10: ffff88d7c2f7c800 R11: 0000000000000001 R12: 0000000000000000
[    2.803016] R13: ffff97fc805c7c18 R14: 0000000000000020 R15: 0000000000000000
[    2.803086] FS:  00007f007c8b7740(0000) GS:ffff88d8566d6000(0000) knlGS:0000000000000000
[    2.803161] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.803224] CR2: 0000000000000000 CR3: 00000000042dc005 CR4: 0000000000772ef0
[    2.803294] PKRU: 55555554
[    2.803322] Call Trace:
[    2.803346]  <TASK>
[    2.803377]  __cancel_work+0x29/0xe0
[    2.803418]  __cancel_work_sync+0x16/0x80
[    2.803459]  __dev_close_many+0x113/0x2b0
[    2.803501]  netif_close_many+0x98/0x160
[    2.803542]  unregister_netdevice_many_notify+0x10c/0xaa0
[    2.803595]  unregister_netdevice_queue+0xa0/0xe0
[    2.803648]  nsim_destroy+0x86/0x180 [netdevsim]
[    2.803708]  __nsim_dev_port_del+0x47/0x70 [netdevsim]
[    2.803761]  nsim_dev_reload_destroy+0x5b/0x110 [netdevsim]
[    2.803814]  nsim_drv_remove+0x2f/0xb0 [netdevsim]
[    2.803867]  device_release_driver_internal+0x193/0x200
[    2.803920]  bus_remove_device+0xc1/0x100
[    2.803961]  device_del+0x15f/0x480
[    2.804003]  device_unregister+0x12/0x30
[    2.804044]  del_device_store+0x117/0x1a0 [netdevsim]
[    2.804097]  kernfs_fop_write_iter+0x12b/0x1c0
[    2.804151]  vfs_write+0x33a/0x470
[    2.804194]  ksys_write+0x65/0xe0
[    2.804235]  do_syscall_64+0xa4/0xfd0
[    2.804277]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.804329] RIP: 0033:0x7f007ca96257
[    2.804369] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[    2.804550] RSP: 002b:00007ffce43d8a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    2.804626] RAX: ffffffffffffffda RBX: 00007f007c8b76e0 RCX: 00007f007ca96257
[    2.804694] RDX: 0000000000000004 RSI: 000055bbb4e8de60 RDI: 0000000000000006
[    2.804761] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000002
[    2.804829] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f006e392040
[    2.804897] R13: 000055bbb4e8de60 R14: 0000000000000006 R15: 000055bbb4be4fd0
[    2.804968]  </TASK>
[    2.804996] Modules linked in: netdevsim
[    2.805039] CR2: 0000000000000000
[    2.805081] ---[ end trace 0000000000000000 ]---
[    2.805126] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.805179] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.805339] RSP: 0018:ffff97fc805c7ae8 EFLAGS: 00010046
[    2.805385] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000100007
[    2.805454] RDX: ffff97fc805c7b20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.805522] RBP: ffff97fc805c7b20 R08: 0000000000000000 R09: ffffffffa713c800
[    2.805591] R10: ffff88d7c2f7c800 R11: 0000000000000001 R12: 0000000000000000
[    2.805659] R13: ffff97fc805c7c18 R14: 0000000000000020 R15: 0000000000000000
[    2.805730] FS:  00007f007c8b7740(0000) GS:ffff88d8566d6000(0000) knlGS:0000000000000000
[    2.805807] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.805870] CR2: 0000000000000000 CR3: 00000000042dc005 CR4: 0000000000772ef0
[    2.805940] PKRU: 55555554
[    2.805969] note: python3[236] exited with irqs disabled